I have the following setup. I have a Macbook Pro with an external monitor plugged into it via HDMI. I then have another external monitor plugged into the Macbook Pro via a Thunderbolt to DVI adapter. Finally I have a thunderbolt cable running from my Macbook Pro to an iMac. I am using this iMac in "Target Display Mode". I also have an ethernet cable plugged into the iMac and the iMac is sharing it's Internet Connection with the Macbook Pro through the thunderbolt bridge. This all works great, except for one very weird thing. There are certain websites that I cannot access. In chrome I get a "ERR TIMED OUT" error when I try to visit certain websites. So far I have only noticed this on two websites:
console.aws.amazon.com key.com (key.com itself is accessible but there is a bill pay iframe that doesn't load and it gives the same error)
Any suggestions on what could be causing this?